Following the tremendous success of their breakout hit Tunnels and its New York Times best-selling sequel Deeper, authors Roderick Gordon and Brian Williams deliver the third thrilling book in their acclaimed fantasy series. Will and Chester are falling deeper and deeper into the subterranean Pore. When they finally land, they find themselves in a low-gravity realm filled with ancient artifacts and deadly perils at every turn. "It is a rare book that can create an entirely new fantastic, harsh, creative yet believable world for readers to visit."-Children's Literature